CO2 Laser Ablation Impulse Generation with Polymer Propellants

被引：8

作者：

Sinko, John E. ^{[1
]}

Gregory, Don A. ^{[1
]}

机构：

[1] Univ Alabama, Dept Phys, Huntsville, AL 35899 USA

来源：

JOURNAL OF PROPULSION AND POWER | 2011年 / 27卷 / 05期

关键词：

LASER-ABLATION; MOMENTUM;

D O I：

10.2514/1.B34072

中图分类号：

V [航空、航天];

学科分类号：

08 ; 0825 ;

摘要：

The fluence dependence of the laser ablation of selected polymers including polytetrafluoroethylene, polycholorotrifluoroethylene, cellulose acetate, polyoxymethylene, and polyethylene was studied within the range 1-200 J/cm(2) in atmospheric air. A transversely excited atmospheric CO2 laser operating at 10.6 mu m with approximately 100 ns pulse length and about 3-20 J output pulse energy was used to ablate prepared polymer samples with single pulses of laser energy. Measurements of parameters such as ablated mass per spot area mu, momentum coupling coefficient C-m, specific impulse I-sp, and ablation efficiency eta(ab) were measured as functions of fluence and assessed based on an analytical vaporization model. Critical threshold effects are described in detail for the first time.

引用

页码：1121 / 1130

页数：10

共 50 条

[11] Axial Impulse Generation of Lightcraft Engines with ∼ 1 μs Pulsed TEA CO2 Laser
Kenoyer, D. A.
Salvador, I. I.
Myrabo, L. N.
BEAMED ENERGY PROPULSION: SEVENTH INTERNATIONAL SYMPOSIUM, 2011, 1402
[12] Ablation of liquids for laser propulsion with TEA CO2 laser
Sinko, John
Kodgis, Lisa
Porter, Simon
Sterling, Enrique
Lin, Jun
Pakhomov, Andrew V.
Larson, C. William
Mead, Franklin B., Jr.
BEAMED ENERGY PROPULSION, 2006, 830 : 308 - +
[13] Propulsive impulse generation using CO2 TEA lasers
Sasoh, A
Watanabe, K
Yu, X
Ohtani, T
Takahashi, T
Kawahara, T
Ogawa, T
EXPLOSION, SHOCK WAVE AND HYPERVELOCITY PHENOMENA IN MATERIALS, 2004, 465-466 : 139 - 142
[14] IMPULSE PRODUCED BY INTERACTION OF CO2 TEA LASER PULSES
READY, JF
APPLIED PHYSICS LETTERS, 1974, 25 (10) : 558 - 560
[15] TEA CO2 laser ablation of Upilex polyimide
Dyer, PE
Karnakis, DM
Oldershaw, GA
Roberts, GC
JOURNAL OF PHYSICS D-APPLIED PHYSICS, 1996, 29 (10) : 2554 - 2563
[16] CO2 Laser Ablation Propulsion Tractor Beams
Sinko, John E.
Schlecht, Clifford A.
BEAMED ENERGY PROPULSION, 2010, 1230 : 282 - +
[17] LASER-SURGERY - ALTERNATIVES TO CO2 ABLATION
WOLBARSHT, NL
PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS, 1985, 540 : 398 - 404
[18] Pulsed CO2 laser ablation of graphite and polymers
Wong, KH
Tou, TY
Low, KS
JOURNAL OF APPLIED PHYSICS, 1998, 83 (04) : 2286 - 2290
[19] Absorption waves produced by CO2 laser ablation
Eckel, H. -A.
Tegel, J.
Schall, W. O.
HIGH-POWER LASER ABLATION VI, PTS 1 AND 2, 2006, 6261
[20] Shadowgraphy of pulsed CO2 laser ablation of polymers
Siew, WO
Tou, TY
Wong, KH
APPLIED SURFACE SCIENCE, 2005, 248 (1-4) : 281 - 285

← 1 2 3 4 5 →